622442720 has 24 divisors (see below), whose sum is σ = 1470521304. Its totient is φ = 248977024.

The previous prime is 622442693. The next prime is 622442731. The reversal of 622442720 is 27244226.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1944974 + ... + 1945293.

It is an arithmetic number, because the mean of its divisors is an integer number (61271721).

Almost surely, 2^622442720 is an apocalyptic number.

It is an amenable number.

622442720 is an abundant number, since it is smaller than the sum of its proper divisors (848078584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622442720 is a wasteful number, since it uses less digits than its factorization.

622442720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890282 (or 3890274 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 622442720 is about 24948.8019752452. The cubic root of 622442720 is about 853.8202760081.

Adding to 622442720 its reverse (27244226), we get a palindrome (649686946).

The spelling of 622442720 in words is "six hundred twenty-two million, four hundred forty-two thousand, seven hundred twenty".